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riscv: Copy the reserved-memory nodes to final DT

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The DT used by U-Boot may be different from the DT being passed to
the OS if the DT is loaded from external media such as network or
mmc. In that case, the reserved-memory node needs to be copied to
the DT passed to the OS.

Signed-off-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Atish Patra
2020-04-21 11:15:03 -07:00
committed by Andes
parent 0cb27856d1
commit 73d756fd22
1 changed files with 7 additions and 1 deletions
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8
arch/riscv/lib/bootm.c
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@@ -28,8 +28,8 @@ __weak void board_quiesce_devices(void)
int arch_fixup_fdt(void *blob) int arch_fixup_fdt(void *blob)
{ {
#ifdef CONFIG_EFI_LOADER
int err; int err;
#ifdef CONFIG_EFI_LOADER
u32 size; u32 size;
int chosen_offset; int chosen_offset;
@@ -50,6 +50,12 @@ int arch_fixup_fdt(void *blob)
/* Overwrite the boot-hartid as U-Boot is the last stage BL */ /* Overwrite the boot-hartid as U-Boot is the last stage BL */
fdt_setprop_u32(blob, chosen_offset, "boot-hartid", gd->arch.boot_hart); fdt_setprop_u32(blob, chosen_offset, "boot-hartid", gd->arch.boot_hart);
#endif #endif
/* Copy the reserved-memory node to the DT used by OS */
err = riscv_fdt_copy_resv_mem_node(gd->fdt_blob, blob);
if (err < 0)
return err;
return 0; return 0;
} }